Gitlab.update(): use the proper attributes if defined

1 files changed, 5 insertions, 2 deletions

diff --git a/gitlab/__init__.py b/gitlab/__init__.py
index ef39cd5..693621c 100644
--- a/gitlab/__init__.py
+++ b/gitlab/__init__.py
@@ -567,8 +567,11 @@ class Gitlab(object):
         params = obj.__dict__.copy()
         params.update(kwargs)
         missing = []
-        for k in itertools.chain(obj.requiredUrlAttrs,
-                                 obj.requiredCreateAttrs):
+        if obj.requiredUpdateAttrs or obj.optionalUpdateAttrs:
+            required_attrs = obj.requiredUpdateAttrs
+        else:
+            required_attrs = obj.requiredCreateAttrs
+        for k in itertools.chain(obj.requiredUrlAttrs, required_attrs):
             if k not in params:
                 missing.append(k)
         if missing: